gatsby-node.js

/**
 * Implement Gatsby's Node APIs in this file.
 *
 * See: https://www.gatsbyjs.com/docs/node-apis/
 */

// You can delete this file if you're not using it
exports.createPages = async ({ actions, graphql, reporter }) => {
    const result = await graphql(`
      query {
        allMdx {
          nodes {
            frontmatter {
              slug
            }
          }
        }
      }
    `);
  
    if (result.errors) {
      reporter.panic('failed to create posts', result.errors);
    }
  
    const posts = result.data.allMdx.nodes;
  
    posts.forEach((post) => {
      actions.createPage({
        path: post.frontmatter.slug,
        component: require.resolve('./src/templates/post.js'),
        context: {
          slug: post.frontmatter.slug,
        },
      });
    });
  };